merrill



(No Model.) 2 Sheets-Sheet 1. G. P. MERRILL.

V Device for Unloading Cars.

Patented'lune 28, I881.

(No Model.) ZSheets-Sheet 2.

. G. P. MERRILL. I

Device for Unloading Oars.

Patented June 28,1881.

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v UNITED STATES PATENT OFFICE.

GEORGE P. 'MERRILL, OF TOLEDO, OHIO, ASSIGNOR TO F. W. STEWART, OF

SAME PLACE.

, DEVICE FOR UNLOA DING CARS. p

' SPECIFICATION forming part of Letters Patent No. 243,389., dated June28, 1881.

Application filed April 28, 1881. (N model.)

To all whom it may concern and are connected together at suitable inter-Be it known that I, GEORGE I MERRILL, vals by heel-plates d. The scraperor molda citizen of the United States, residing at Toboard A and bars ab are connected at their ledo, in the county of Lucas and State of Ohio,forward ends to a nose-castin g, B, said scraper have invented certainnew and useful Improveor mold-board being disposed at an acute an- 5 5ments in Devices for Unloading Cars; and I gle with the draw-bars. Theseheel-plates 01 do hereby declare that the following is a full, haveconnected to them in any suitable manclear, and exact description of thesame, refner horizontal anti-friction rollers O, the peerence being hadto the annexed drawings, riphery of which bears against the inner sidemaking a part of this specification, and to the of the rail 0, toprevent the unloader from beletters and figures ofreference markedthereon. ing pushed over by the pressure of the ballast. j Figure 1 ofthe drawings is a side elevation Each of the rollers O is formed with achamof my invention, showing its interior construcber, e, for oil, andfrom this chamber to the tion. Fig. 2 is a top-plan view of the same.axial opening of the roller is an inclined pas- 15 Fig. 3 is across-section on an enlarged scale. sage, f, so that the oil in thechamber may be Fig. 4 is a detail view of the forward roller, fedthrough said passage automatically tothe with its bell-crank and leverconnections. Fig. journal of the roller, thereby making the sev- 5 is adetail view, showing the interior 0011- eralhorizontal rollersself-lubricating. struction of the nose-casting. Fig. 6 is a de- Thesystem of braces employed for giving 20 tail view of the bell-cranklever, connectingstrength and rigidity to the unloading device sleeve,and operating screw-rod. Fig. 7 is a is one of the many essential andimportant sectional viewin detail of the sleeve and guides. features ofthe invention, and consists in part Fig. 8 is a top-plan view of one ofthe horizonof the horizontal braces D and inclined braces talanti-friction rollers, showing the oil-cham- E, extending from thescraper or mold-board 25 her and feeding-outlet. Fig. 9 is a longitudi-A across or transversely to the draw-bars nal vertical central sectionthereof, taken a I). These braces D E are formed at their through theoil-chamber and outlet. Fig. 10 ends with angle-plates for convenienceof atis aside elevation in detail of one of the vertaching the braces,by bolts, rivets, or other tical anti-friction rollers with itsconnections suitable means, to the inner side of the scraper 0 andoperating screw-rod, and Fig. 11 is a deor mold-board. Theopposite endsof the hori- 8o tail view of one of the side rollers and attachzontalbraces D are formed in like manner and ments. connected to the outerside of the draw -bar b,

This invention has relation to certain new while the opposite ends ofthe braces E are and useful improvements in devices for unloadsecured toribs on the top of the heel-plats d.

35 ing cars from one side only at a time, the ad- The braces-D E, at ornear the point of attach- 8 vantages of such a device being fully setforth ment to the draw-bars and heel-plates, have in the patent grantedto me November 30, secured to them upright braces F.

1880, No. 234,883. To the inner side of the scraper or mold- The objectof the present invention is to imboard A are'secured T-irons G, whichare bent 4o prove the constructionandoperation of these to conform tothe shape thereof, thereby givside ballast-unloaders covered by myformer ing additional strength, stiffness, and rigidity patent, whichobject I attain by the constructo the scraper or mold-board, theseT-irons tion substantially as shown in the drawings, being placedbetween the cross-braces and conand hereinafter described. nected to thescraper or mold-board in any 5 In the accompanying drawings,Arepresentssuitable manner.

the inclined scraper or mold-board, having To the rear end of theunloading device, and two draw-bars, a 1), running parallel with a nearthe inner side of the scraper or moldrail,'c, secured to the platformofthecarleugthboard A, is located a roller, H, supported and wise and atone side thereof. These bars a b having its bearings between twoangle-arms 50 are located one upon each side of the rail 0, or.bell-crank levers, 9. These arms or levers mo are pivoted at theirforward ends to any suitable object or extension of the frame-work ofthe unloading device, and their rear ends are located between lugs oneach side of a carrier, I. This carrieris formed with a screw-threadedopening, through which passes a screw-rod, h, provided at its upper endwith a suitable handwheel, 5, for turning said screw-rod, which elevatesor lowers the carrier 1, taking with it the ends of the an gle-arms orbell-crank levers g, and thus adjusting the height of the roller H. Thecarrier I is formed with shoulders j, the shoulders embracing each sideof an upright, 70, so as to prevent the carrier from turning with thescrew-rod, said screw-rod having its bearings in suitable boxesconnected to the upright 70.

Between the draw-bars ab are located two or more rollers, J, which, likethe roller I, bear upon the platform of the car and act as anti frictionrollers. The means employed for adjusting the height of the rollers Jare somewhat different than the construction shown in connection withthe roller H.

By reference to Figs. 9 and 10, it will be seen that the roller J hasits bearings in and is supported by a yoke, K, the shank Z of which fitsloosely within an opening in the lower end of a swivel or sleeve, L. Tothis sleeve L is swiveled the lower end of an operating screw-rod, m,provided with a suitablehand-wheel, n. This rodn en gages withascrew-openingin a bracket, M, so that by turning the screw-rod it willbe raised or lowered.

To avoid the possibility of the swivel or sleeve L turning or twistinglaterally when it is being raised by the screw-rod, the sleeve is formedwith flanges 0, between which is located a guide, 1), upon the bracketM, to steady and guide the sleeve in its vertical movement, said bracketbeing bolted or otherwise secured to one of the heel-plates d.

Theforward anti-friction roller, N, is adapted to run on the top of therail 0, and is placed in close proximity to the nose-casting B. Thisroller N, as more clearly shown in Figs. 1 and 6, is connected andsupported between bellcrank levers O, the horizontal ends of said leversbeing pivoted to the nose-casting B, and the upright ends pivoted to alink, g, which in turn is pivoted to a hand-lever, 1?, said lever at itslower end being pivoted to the nose-casting. By pressing down upon thehand-lever P, the forward part or end of the unloader will be elevated,and when it is desired to hold the lever in the position to which it hasbeen brought or desired, a pawl, r, is employed,which engages with theteeth upon a rack-bar, 8, connected to the lever by a suitable pivot,said rack-bar passing through a slot in the partition-rib of thenose-casting.

A tie-rod, It, serves to transfer the pull of the locomotive to thedraw-bars a b, said rod terminating at its lower end in a screw, andpassing through a strap, S, firmly secured to the sides of thedraw-bars, and held thereto by a suitable nut engaging with thescrewthreaded end of the tie-rod R.

In order to prevent the unloader from being disengaged with the rail 0when the cars are not standing in a straight line or on a curve, astrap, T, is employed, which is connected to the draw-bar a, the forwardpart or end thereof being curved outwardly. This strap, which has toextend downward low enough that its bottom edge will never be as high asthe top of the rail 0, will prevent the forward part of the draw-bars,and accordingly the unloader,

from being pushed over toward the middle of the car, as the strap willstrike the guide-rail c. The nose-casting might be formed so as to havea guide on both sides of the rail.

The drum or windlass U is supported by a suitable frame-work, t, whichmay be of any desirable construction, the frame-work being preferablyformed of a series of inclined braces connected byaband or strap andlateral braces.

The nose-casting B is formed upon its under side with guides 11, whichfit over the guiderail 0.

Having now fully described my invention, what I claim as new, and desireto secure by Letters Patent, is-

1. A device for unloading cars provided with self-lubricatinganti-friction rollers, substantially as and for the purpose set forth.

2. In a device for unloading cars, a suitable nosecasting havingconnected thereto two draw-bars disposed parallel to each other andadapted to extend upon each side of the guiderail of the car-platform,in combination with a tie-rod extending from the nose-casting to thedraw-bars, substantially as and for the purpose set forth.

3. In a device for unloading cars, a tie-rod connected at its upper endto the nose-casting and at its lower end to a stirrup or strap securedto the draw-bars, and means, substan tially as shown and described, foradjusting the tension of said rod, for the purpose specified.

4. In a device for unloading cars, the combination, with two draw-barsarranged parallel with each other and extending from the nosecasting tothe rear of the device, of a series of horizontal anti-friction rollersadapted to bear against the side of the guide-rail of the carplatform,substantially as and for the purpose described.

5. In a device for unloading cars, a nosecasting having pivoted theretobell-crank levers, between which is connected a suitable roller, incombination with a hand-lever pivoted to said nose-casting and connectedto the upper end of the bell-crank lever by a link or strap pivotedthereto and to the hand-lever, substantially as and for the purposespecified.

6. In a device for unloading cars, a roller secured or supported betweentwo bell-crank levers pivoted to the nose-castin g at their lower orhorizontal ends, and at their upper ends to a link or strap,incombination with a hand-lever IIO heel-plates connected at intervals tothe draw-- bars along their entire length, substantially as and for thepurpose specified.

8. In a device for unloading cars, the combination, with two draw-barsextending from the front to the rearthereof,of a series of heelplatesconnected to said bars and haviugjournaled thereto horizontalanti-friction rollers, substantially as and for the purpose described.

9. A device for unloading cars having connected to the mold board orscraper thereof, upon its inner side, a series of T-irons, andhorizontal and inclined braces extending transversely across the device,substantially as and for the purpose set forth.

10. In a device for unloading cars, one or more vertical rollerssuitably journaled between the arms of a yoke or other like connection,the shank thereof loosely fitting within a slot or opening in a sleeve,in combination with an operating screw-rod en gaging with a screwopeningin a bracket and swiveled atits lower end to said sleeve, substantiallyas and for the purpose specified.

11. A device for unloading cars having its several vertical rollers journaled to a yoke, bell- 3 5 crank lever, or other suitable support,the same being pivoted at one end to a suitable object and connected atits opposite end to an operating screw-rod, hand-lever, or other similardevice for raising or lowering the same, sub- 4.0 stantially as and forthe purpose set forth.

12. A device for unloading cars provided with a series of horizontalanti-friction rollers having a receptacle for oil or other lubricant,and an inclined passage therefrom to the axial 5 opening of saidrollers, for automatically feeding the oil or lubricant to the hearingsor journals, substantially as and for the purpose described.

13. In a car-unloader', the combination,with 50 the draw-bars, of astrap connected to the side thereof, the forward part having its endbent outwardly, substantially as and for the purpose set forth.

In testimony that I claim the above I have 55 hereunto subscribed myname in the presence of two witnesses.

GEO. P. MERRILL.

Witnesses:

-J. R. OSBORN,

SYLvEsTER LAMB.

